"OneHotBtch4U32" wrote in message news:U%IAb.9552$5g.2817@okepread04...
Is anyone familiar with the amount of time it takes the iron in most
fertilizers to breakdown to a point where getting some of the soil on
concrete no longer poses a rust problem?

What I'm working with it about 2% iron, and it has been watered thoroughly
and deep.

Thanks

Little rust try rubbing with lemon
Big rust buy some rust remover- plumbing supply might have it.